Perpetual Motion: Hammers spinning in space?

Hey all,

I'm no expert on physics, but I was wondering why something spinning in
outer-space, far away from planets or stars, doesn't qualify as
perpetual motion. There is no friction to worry about. The only way to
disqualify it would be on a technicality, that matter is just a form of
energy, and that someday, even if it is billions of years into the
future, that big spinning iron disc in space will eventually get
thinner and thinner, due to solar winds, possible crashes with other
space debris, etc. until there is nothing left. But such inevitable
decay doesn't seem to be a real rebuttal to a perpetual motion model
that might pave the way toward free energy at least for as long as YOU
are alive. I mean, free energy for 100 years and no longer, doesn't do
me and you any less good than would an authentic and permanent
perpetual motion machine that will last forever....right?


Also, wouldn't a true perpetual motion machine be little more than a
curious invention with no value? If you can get a disc to spin by
itself, you are going to create extra friction as soon as you try to
extract kinetic energy from the work of the spin. This increase in
friction would require being offset by an additional power source to
keep the disc spinning. So isn't this proof that even a true perpetual
motion machine, if created, could never actually generate the free
energy people intend to use it for?

I know I'm stupid, but pretend it's just a alge asking a shark.

.